Abstract
Lanthanum hexaboride (LaB6) thin films were used as protective layers in alternating current plasma display panels (AC-PDPs). The firing voltages and discharge delay time of protective LaB6 thin films were evaluated and compared with the conventional protective MgO layers in planar-type test panels filled with 5%–15% Ne-Xe. By employing LaB6 thin films as protective layers, both the firing voltages and discharge delay time decreased drastically. Improvements in the discharge properties of the LaB6 thin film could be attributed to the lower work function, offering more priming electrons during the discharge process.
Highlights
Lanthanum hexaboride (LaB6) thin films were used as protective layers in alternating current plasma display panels (AC-PDPs)
The firing voltages and discharge delay time of protective LaB6 thin films were evaluated and compared with the conventional protective magnesium oxide (MgO) layers in planar-type test panels filled with 5%–15% Ne-Xe
It is necessary to develop a new protective layer to obtain high-performance AC-PDPs. Recent research in this field has focused on doping MgO with impurities or coating an additional thin protective layer on the MgO layer in hopes of enhancing the secondary electron emission yield of the protective layer in AC-PDPs; this research includes studies into the effects of MgO doped with ZnO [1], MgO doped with Si [2], MgO doped with SiO2 [3], MgAl2O4/MgO double layers [4], SrO/MgO double layers [5], LaF3/MgO double layers [6], and so on
Summary
SPECIAL TOPICS: Discharge characteristics of protective LaB6 thin films in an AC plasma display panel Lanthanum hexaboride (LaB6) thin films were used as protective layers in alternating current plasma display panels (AC-PDPs).
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